package com.companyName.sample.rest.config;
import com.companyName.sample.rest.restful.sys.UserInfoController;
import org.springframework.beans.factory.annotation.Autowired;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;

/**
 * 使用注解标注过滤器
 * @WebFilter将一个实现了javax.servlet.Filter接口的类定义为过滤器
 * 属性filterName声明过滤器的名称,可选
 * 属性urlPatterns指定要过滤 的URL模式,也可使用属性value来声明.(指定要过滤的URL模式是必选属性)
 *
 * @author   单红宇(365384722)
 * @myblog  http://blog.csdn.net/catoop/
 * @create    2016年1月6日
 */
@WebFilter(filterName="myFilter",urlPatterns="/*")
//@Lazy(true)
public class MyFilter implements Filter {
    @Autowired
    UserInfoController userInfoController;

    @Override
    public void destroy() {
        System.out.println("过滤器销毁");
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        try {
//            userInfoController.getUserInfo("1");
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("执行过滤操作");
        chain.doFilter(request, response);
        System.out.println("执行过滤操作后");
    }

    @Override
    public void init(FilterConfig config) throws ServletException {
        System.out.println("过滤器初始化");
    }

}